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Mixed Minerals

Friday, 11 November 2022 06:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including cerchiaraite-(fe), chrysocolla, dawsonite, devitoite, ferroericssonite, and fluorite and more from places like Esquire #7 claim, Big Creek, Fresno Co., California, United States, Bagdad pit, Eureka dist., Yavapai Co., Arizona, United States, Limoncino, Livorno, Livorno Prov., Tuscany, Italy, Esquire #8 claim, Big Creek, Fresno Co., California, United States, and Hunan, China.

Cerchiaraite-(Fe)

#59669
Locality
Esquire #7 claim, Big Creek, Fresno Co., California, United States 
Formula
Ba4Fe43+O3(OH)3(Si4O12)[Si2O3(OH)4]Cl 
Availability
Available
Price
$75.00
Size
2 x 1.5 x 1 cm - Thumbnail 

Dark blue massive Cerchiaraite-(Fe). The Esquire #7 deposit share type localities with two other localities.


Cerchiaraite-(Fe)

Collection
Robert E. Walstrom collection

Chrysocolla

with Quartz - #59551
Locality
Bagdad pit, Eureka dist., Yavapai Co., Arizona, United States 
Formula
(Cu,Al)2H2Si2O5(OH)4·nH2
Availability
Available
Price
$325.00
Size
12 x 5.5 x 5 cm - Cabinet 
Tagged
copper  

A beautiful specimen of blue Chrysocolla with drusy Quartz overgrowth and cloud like formations. 


Chrysocolla

Formula
(Cu,Al)2H2Si2O5(OH)4·nH2
Crystal System
Orthorhombic 
Crystal Habit
Botryoidal, Earthy, Stalactitic 
Cleavage
None, None, None 
Luster
Vitreous - Dull 
Color
green, bluish green, blue, blackish blue, brown 
Streak
light green 
Class
Orthorhombic 
Fracture
Brittle - Sectile 
Hardness
2.5-3.5 

Dawsonite

#59660
Locality
Limoncino, Livorno, Livorno Prov., Tuscany, Italy 
Formula
NaAlCO3(OH)2 
Availability
Available
Price
$20.00
Size
2 x 1 x 1.5 cm - Thumbnail 
Tagged
carbonate  

Excellent white sprays to 1mm.


Dawsonite

Formula
NaAlCO3(OH)2 
Crystal System
Orthorhombic 
Crystal Habit
Radial, Acicular, Encrustations 
Cleavage
Perfect, None, None 
Luster
Vitreous - Silky 
Color
colorless, white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Uneven 
Hardness
Mineralpedia
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Devitoite

#59672
Locality
Esquire #8 claim, Big Creek, Fresno Co., California, United States 
Formula
[Ba6(PO4)2(CO3)][Fe2+7Fe3+2(SiO3)8O2(OH)4
Availability
Available
Price
$150.00
Size
3 x 2 x 2 cm - Thumbnail 
Tagged
phosphate , carbonate  
Special Info
Type Locality 

Very rich specimen of deep red Devitoite in sprays up to 5mm in diameter with black Anandite. Excellent specimen.


Devitoite

Formula
[Ba6(PO4)2(CO3)][Fe2+7Fe3+2(SiO3)8O2(OH)4
Collection
Robert E. Walstrom collection
Special Info
Type Locality
Mineralpedia
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Ferroericssonite

with Gillespite - #59671
Locality
Esquire #8 claim, Big Creek, Fresno Co., California, United States 
Formula
BaFe2+2Fe3+O(Si2O7)(OH) 
Availability
Available
Price
$65.00
Size
3 x 3.5 x 1 cm - Miniature 
Special Info
Type Locality 

Dark reddish brown Ferroericssonite with red Gillespite.


Ferroericssonite

Formula
BaFe2+2Fe3+O(Si2O7)(OH) 
Collection
Robert E. Walstrom collection
Special Info
Type Locality

Fluorite

#59652
Locality
Hunan, China 
Formula
CaF2 
Availability
Available
Price
$75.00
Size
12 x 12 x 0.7 cm - Cabinet 

Beautifully banded gree to purple slab not polished.


Fluorite

Formula
CaF2 
Crystal System
Isometric 
Crystal Habit
Crystalline - Coarse, Massive - Granular, Disseminated 
Cleavage
Three perfect, octahedral cleavages. 
Luster
Vitreous (Glassy) 
Color
purple, clear, yellow, green, red, blue 
Streak
white 
Geological Setting
Occurs in a wide range of geologic environments including low temperature Missississippi Valley lead-zinc deposits, hydrothermal gold deposits, Alpine cleft metamorphic environments  
Class
Isometric - Hexoctahedral 
Fracture
Uneven 
Hardness
Mineralpedia
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